Computing ?.



c. B. GORELL. lCOIIIPUTING MACHINE. APPLRCATION FILID 1ULY\O,1912`.

Patented Dec. 19,1916.

2 SHEETS-SHEETI a @n @n L @u @Qm E mman@ w N aATTORNEY C. B. COR'ELL.

COMPUTING MACHINE.

APPLlcATloN' man JuLYlo, 1912.

Patented Dea. 19, 1916.

2 SHEETS-SHEET 2.

WTN ESS ATTOR necesi@ by means of legs and 11, the latter of which are arranged to travel in guiding ways or slots -12 provided between guiding blocks 13. This arrangement enables the racks 6'of the bars 5to always mesh with gears 1570i computing or dial wheels 16. These computing or dial wheels 16 have numbers thereon arranged from O to 9, and are adapted to exhibit these numbers through a sight opening 17 provided in the top or cover of the casing 9.

The connectien of the' gears 15 in each instance to the number-bearing portion of the computing or dial wheel is such that a forward movement of the associated rack bar 5 will rotate the computing wheel, but a rearward motion' will rotate the gears 15 idly without aifecting the relative position of the dial wheels with respect to the sight opening 17. This arrangement will be seen by reference to Figs. r6 and 7, to include a ratchet wheel 18 of which there is one for each of the gears 15. The ratchet wheel 18 has 'teeth inclined in one direction so that they will engage and`be connected rigidly to a spring-'pressed dog 19 during the rotation of the gear 15 in one direction, and so that they will automatically slide by the dog 19 during the rotation of the gear 15 for a return movement o-f the racks 5 The dog 19 is slidingly mounted on the number-bearing portion of the computing or dial wheel so that this mechanism forms a one-way ratchet connection between the gear l5 and the body portion of the dial or computing wheel. It will be seen by refer'- ence to Fig. 7 that the gear 15 and the ratchet wheel 1S are loosely mounted' on a hub 2G of the computing or dial wheel so as to be capable of rotating relatively thereto.

For the purpose of carrying tens from one computing wheel to the computing wheel of next higher denomination, each computing wheel is provided with a single tooth 21 which is adapted to engage a mutilated gear 22 when the accordant dial wheel shifts from 9. to 0]9 so that this gear is shifted through-a ninth cf a revolution. The mutilated gear 22 has every third tooth cutaway so`that it presents when inactive, blank portions thereof to a corresponding assisting segment 23 mounted on shaft 24. rthere is one of these assisting segments 23 for each of the computing wheels, with the exception of the one of highest denomination, and they are arranged spirally on the shaft 241-Y so as to come successively into action from lowest denomination to highest, whereby tens are carried from a lower computing wheel to a -higher computing wheel, and a tens completed by the tens-carrying operation will be carried to the next higher computing wheel.-

rl`he assisting segment 23 rotates the mutilated gear 22 throughtwo-ninths of a revolution so that a three-toothed'wheel 25, which is secured to the mutilated gear .22, will be rotated in all a third of a revolution, whereby one of the teeth '25a will engage a gear 26 fast on the next higher computing ywheel 16 to rotate this computing wheel one-tenth 70 of a revolution.

The mutilated teeth of the gear 22 while cut away enough to avoid the assisting segments 23, are of suthcient magnitude to enable spring-pressed detents 27 yto hold them 75 in any adjusted position. The computing wheels 26 are also engaged by spring-pressed detente 2S, whereby the computing wheels will be yieldingly held in their proper positions so that overthrow of the computing wheels is prevented.

The rack bars 5 receive their motion from a general operator 29 which is shown to comprise a pair of side bars 30 spaced apart from each other and connected by a transg5 verse bar 31 and a transversely disposed handle 32. The side barsSO are doublestepped so that a portion thereof can extend beneath the computing wheels and so that -the portion bearing the transversely disposed 9e handle 32 will extend upwardly free and clear of the machine in a position where it can be readily grasped by the person operating the machine. These side bars 30 are also provided with downwardly extending legs 33 so as to support the side bars in raised positions from the bottom of the casing 9.

It will be noted that the handle 32 travels close to the forwardly extending flat portion lee of the casing, and that the numeral keys 1 lie on a slope of the casing, so that said keys are well protected from accidental injury by the enlarged part of the casing in which the computing wheels are journaled. Moreover the handle 32 itself stands nearly at the height of the numeral keys and so helps to protect said keys.

The cross bar 31` is in the form of a plate which has its front edge a little behind the 11C pins 3 to engage such of the pins 3 as may be projected downwardly by their associated 'keys 1, while its rear edge normally stands against lugs 32a on the rack bars 5 to engage on the return stroke of the generalr operator 1li with said lugs 82L to return these rack bars to their normal positions. YVhen the handle pulls the general operator forward, the cross bar 31 will come into engagement withPN`A` said pins, moving the rack bars '5 vtoi-ward 12o amounts corresponding to the particular pins which are set thereonyso that the computing wheels 16 are turned to a corresponding extent by their racks 6. It will be seen vthat in this structure the racks 6 are located 125 on the farther side of the computing wheel 1G from that portion which bears the pins 3 and from the` position of the keys 1, that is to say',r the computing wheel and the tenscarrying mechanism therefor are located ine direetion.

This ineeimniem includes e, etftionery recit 34 with Whisk n'teinteiyfengeg'e oeking' dogs 35 end 3G pivoteei-on genezei. operator 29. A roeier 23?' eine end 35? .underlying respeotiveiy 55 When this iockei' is swung to one position it permits one ot the dogs to tit-op to engage the mein time eiiowing the geneei egfemtor to move ony in one direction) end swung to another' position it permite the otheiI deg to engage the Teck, allowing the geneei operatoi` to move only in the opposite direction. The roeler is shifted from one position to the other when the geneie opeiatoi reaches the iimit of its movement in eeen direction, by cams 40 and il which :we ooeted at the enos of the stationery mok Each cani raises its end comes into engagement ther th. As will be seen byl te the rocker 3'( is iooked in eitiie' position by means of e, spring detent 'shifted 1oy e @ein et) o1- Li. The ogs 35 end 36 eine facet. opposite directions eothet one permits e movement in u iiigreotion which the othei1 prevents.,s en tile weiter is swung so that one' flog is ehitefi out et 'the seme time that the other is shifted in; and this shifting ooeurs et the end of eeen stioke so that a compiete movement in the opposite di reetion is the only movement ot which the genem operator is eepebi For the purpose of ietutning nii @tithe pine 3 to tneie normei posltione etten the recu oars 5 been moved tneeby to cayy into the computing wheels the numbers 'which have 'been set up; there is pifovide e pina'estoiny; pivoteiiy pie-te 43 which is n'iounted on oianks 44e and 45, the iettei being connected., always in o inics 4G.

The general epei'etor prow/ideati 'with -a eem hook 47 W ich, duiing the forwar movement thereof, siips ovei o one-Way spring pawi e8 piovided on en L9 eecured to one et the cranks 4 5. On the return motion` how 7e1',the hook 4:7 engages the pawl 4S on te opposite side so that it forms; e rigidjntei ieliery enabling the genee operator 'to swing the pin-iesto'iing; pitite 43 upwai'dy nntii it oioed oli tite pins 3 to their noiinei uppei' positions, shown in Fig. 3. e binmestoiing plete 43 can also 'be actuated lirectly ae when an error e'vei positiony by ineens of has been made. by en eiror key 50 which is normally hei L its uppermost position by eeton before u rotation in one direction et the mener 37 when 1t it? which heide tiii nexty etor will be eeiie to eii the o so as te move the piete i3 gages e notch 62 prov eta. cured to the shett 6G.

one-Way clutch connection.' l oem Soeket en e when the general op" f shift the roei; bei' 5? Q pin 56,-tiie shaft 5G wii t The Shaft GG is previewed Wi sockets 64 and 65 for sprl Way Abell outohes which. er pressed; out into com soda 2O Aof ali of the Comput; .i clutches ere so emanged time the previous position of Whee, when :t bell cl'utoii e., ment with its socket 66, it or computing Whe untii The socket 65 tot the unit one step in advance of Wii bring the unite comp 5 Zero, theeby starting e tene` tion which on the retnin etioke oi ing Wheeis causing them b The iiiye for the tens-carrying meehenis'" the genore operato? dui tl/ereoi.7 by means e e rack 68 provide on one 30. The gear 67 meshes w mounted on the shet thereto Voy a one-Way elutc the shaft 2e- Wii rotate eeiey turn movement of the genejei for one Complete ieveiution 5. 24 is heid in its normal idle y t tige shaft 60, by e dog' 7i enge.`V disk 72.

The shook en@ noise 'to of the rack bers 5 beekwerdiy i. e feit buffer 73 ioonte in front Chine above the guiding' 'bien When Carrying the machine eee' piace to place e pivoted haii 7% muy as a carrying handle. It Wii time L, that there is provided e simpe, o adding machine with e eonsieretbie which is capable of being readily operated, and which can becarried from place to place without any great inconvenience so that a single machine can be -used by a number of different persons to verify books at diierent places.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without othersv Having thus described my invention, ll claim 1. The combination with a series of computing wheels, rack bars arranged to rotate said wheels, legs projecting downwardly to support said rack bars in a raised position, and guiding means engaging certain of said legs to confine the movement of each of said rack bars to a certain plane.

2. The combination with a series of compnting wheels, rack bars arranged to rotate said wheels, a series of pins on each of said bars to determine the extent of movement thereof, means for setting said pins to project downwardly, means for holding said bars in a raised position to permit the setting of said pins, and a series of guiding blocks spaced apart from each other and arranged on opposite sides of each of said bars to form guiding ways therefor.

3. Illhe combination with a series of computing wheels, rack bars arranged to rotate said wheels, a series of pins on each 'of said bars to determine the extent of movement thereof, and a general operator comprising a pair of side bars, a cross bar connecting said side bars'and. arranged to engage the set pins to move said rack bars, and a transversely disposed handle connecting said side i bars.

1l. The combination with a series of computing wheels, of rack bars `arranged to rotate said computing wheels, keys for determining the extent of movement of said rack bars, a general operator for shifting said rack bars, said general operator comprising a pair of side bars stepped so that a portion thereof will extend under said computing wheels and a portion thereof will extend above the machine, a'handle transversely disposed and connecting said last mentioned portion, and a cross bar arranged to operate said rack bars and connecting said first-mentioned portion.

5. The combination with a series of computing wheels, of rack bars arranged to rotate said computing wheels, keys for determining the extent of movement of said rack bars, and a general operator for moving said rack bars, said general operator comprising a pair of side bars spaced apart from each other and connected by a cross bar in the form of a plate, the side bars each comprising a pair of l..-shaped stepped portions extending at one'end beneath said computing wheels and at the other end outinodoro side of and in front of the body of the machine, a handle connecting, said side bars located above and in front of the machine in a position convenient to the operator, and legs extending downwardly from saidl side bars to hold them ina raised position.

6. The combination with a series of computing wheels, of a series of racks arranged to rotate said computing wheels, a general operator for manipulating said racks, tenscarrying mechanism for said computing wheels, said general operator comprising a pair of side bars projecting within and without the machine, a transversely dis` posed handle connecting said side bars, one of said side bars having a rack formed thereon, and gearing driven by said rack for driving said tens-carrying mechanism.

7. rllhe combination with a series of computing wheels, of rack bars arranged to rotate said computing wheels, a series of pins on each of said rack bars, means for setting said pins to determine the extent of movement of said rack bars, a pin-restoring plate mounted for movement pn one side o-f said rack bars, a plurality of cranks for pivotally supporting said plate, an arm connected to one of said cranks, a one-way pawl on said arm, a general operator for manipulating said rack bars, and a fixed hook on said general operator. adapted to engage said pawl to manipulate said pin-restoring plate.

8. rl`he combination with a series of computing wheels, of rack bars arranged to rotate said wheels, pins on said rack bars, means for setting said pins, a general operator arranged to engage the said pins to manipulate said rack bars, said general operator comprising a pair of side bars, a cross plate connecting said bars and engaging ing said side bars in the raised position, a

pin-restoring plate underlying all of said pins, a plurality of cranks for movably supporting said plate, an arm on one of said cranks, ahook carried by said general operator to engage said arm when said general operator moves in one direction so as to shift said plate to restore vsaid pins to their normal positions, an arm on another of said cranks, and a key engaging said arm to op- 4 erate said ,plate to restore said pins.

9. rllhe combination with a'casing, of a series of computing vwheels in said casing, means for rotating said computing wheels, indexing devices, and a generaloperator extending partly within said casing beneath said computing wheels to a position convenient to coperate with said indexing devices, and extending partly without said casing to a point convenient to the operative, and having a transverse exterior handle adtion with numeral keys and computing .portion or' said easing wheels7 of members on which numbers are temporarily set up, a casing in Which said Wheels and members are confined, a general operator for carrying numbers from said members into said Wheels, a handle for said general operator lying adjacent the surface of said easing and traveling adjacent said surface, and an enlarged ortion of said oasing extending beyond said handle, said enlarged portion containing the computing Wheels. y

11. ln a computing machine, the combination with a casing and keys projecting therefrom, of computing wheels in an enlarged members on which numbers are temporarily set up by said keys, a general operator for carrying the numbers so set up into said Wheels, and a handle for said general operator normally standing adjacent said keys; said handle and said enlarged portion of the casing forming a. prot'ection for the keys.

12. In a computing machine, the combination with a casing, of numeral Wheels located in an enlarged portion of said casing, members on which numbers are temporarily set up, keys in an extension of said casing of less size so that said casing is of least size Where it faces the operative, a general operator for carrying the numbers set up by said keys into said computing Wheels, and a handle for operating said general operator extending across said machine near said keys and between them and the operative.

CLIFTON B. ooRELL. 

